Looks like a sort of dirty white, but definitely noticeably lighter than Airbus grey. If you look at photos of the extended flaps you can see the leading edge is still Airbus grey and the exposed rear upper surface is nearly white in contrast. The video mentioned above shows the upper wing surfaces (with flaps retracted) being painted the same colour as the the fuselage.
Clearly it has had a few bits replaced since it was painted:
https://cdn.airplane-pictures.net/images/uploaded-images/2016/5/3/713423.jpg
Andrew

Lufthansa has Trent engines too, apparently (but don't seem to like slapping RR stickers on them like BA do):
https://www.planespotters.net/airframe/Airbus/A380/D-AIMA-Lufthansa/5GEbC6
I think the kit caters for both types (although from memory only with different fan disks and exhaust cones).
Andrew